{
  "abstract": "The quasiparticle effective mass $m^*$ of the three-dimensional uniform electron gas (UEG) is a fundamental Fermi-liquid parameter whose value and density dependence have remained controversial for decades. Using renormalized perturbation theory with explicit counterterms, we determine $m^*$ in the metallic regime ($r_s \\le 6$) from first principles by two complementary routes -- the self-energy and the forward-scattering four-point vertex via the $p$-wave spin-symmetric Landau parameter $F_1^s$ -- that agree within uncertainties at each density through sixth renormalized order. The resulting $m^*/m$ remains close to unity throughout the metallic regime, with a shallow non-monotonic density dependence -- a minimum near $r_s\\approx 1$ followed by a gentle upturn -- reflecting the interplay of exchange and dynamical screening in the self-energy, and disfavoring strong monotonic suppression. This finding supports a physical picture for the metallic UEG in which dominant charge correlations are concentrated in nearly forward scattering and generate only a weak $F_1^s$ component.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2605.02294",
  "author_total": 9,
  "authors": [
    {
      "name": "Pengcheng Hou"
    },
    {
      "name": "Daniel Cerkoney"
    },
    {
      "name": "Zhiyi Li"
    },
    {
      "name": "Tao Wang"
    },
    {
      "name": "Xiansheng Cai"
    },
    {
      "name": "Lei Wang"
    },
    {
      "name": "Gabriel Kotliar"
    },
    {
      "name": "Youjin Deng"
    },
    {
      "name": "Kun Chen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/395eqc3arsn5k.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.02294",
  "fulltext_url": null,
  "id": "395eqc3arsn5k",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.02294",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "arxiv",
      "physics.comp-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.02294",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/395eqc3arsn5k.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2605.02294",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.02294"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.comp-ph",
      "subfield": "computational"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "First-Principles Effective Mass in the Three-Dimensional Uniform Electron Gas",
  "title_text": "First-Principles Effective Mass in the Three-Dimensional Uniform Electron Gas",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/395eqc3arsn5k",
  "venue": "arXiv",
  "versions": []
}